Trump and Cruz are tag teaming to distract the dems and media. If you look it up, they had many private meetings prior to all this . By argueing they suck all the oxygen and also draw attention to the cheating with insane accusations. Its working.
That’s the way I see it as well.
Both Trump and Cruz understand the optics and how others will react and report certain statements and events.
I wouldn’t be surprised if they still talked on a regular basis.